312001432301402 has 4 divisors (see below), whose sum is σ = 468002148452106. Its totient is φ = 156000716150700.

The previous prime is 312001432301401. The next prime is 312001432301413. The reversal of 312001432301402 is 204103234100213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 184159311621961 + 127842120679441 = 13570531^2 + 11306729^2 .

It is not an unprimeable number, because it can be changed into a prime (312001432301401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78000358075349 + ... + 78000358075352.

Almost surely, 2^{312001432301402} is an apocalyptic number.

312001432301402 is a deficient number, since it is larger than the sum of its proper divisors (156000716150704).

312001432301402 is a wasteful number, since it uses less digits than its factorization.

312001432301402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156000716150703.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 312001432301402 its reverse (204103234100213), we get a palindrome (516104666401615).

The spelling of 312001432301402 in words is "three hundred twelve trillion, one billion, four hundred thirty-two million, three hundred one thousand, four hundred two".